Cannonau is the signature red grape of Sardinia. It is identical to the French Grenache and the Spanish Garnacha, but it seems like the origin is actually from Italy. We are working on this Cannonau grape description. Please come back soon.Send us an e-mail if you are looking for more info at cheers@drinkitalian.com Two of the best books about Italian grapes, where some of this information come from, are:– Native Grapes of Italy, by Ian d’Agata– Italian Wine Unplugged, by Steve Kim Additionally, you can discover the other grapes from Sardinia.